How to identify Oysterling

To correctly identify Oysterling (Crepidotus mollis), check each of these features in order. Misidentification is the most common cause of mushroom poisoning, so cross-reference multiple sources.

Step-by-step identification

1. 1

   Cap

   Shape, color, surface texture, and diameter.

   Typically 1-4 cm wide, kidney-shaped to semicircular. The color ranges from pale tan to brownish, often with a smooth, moist surface.

2. 2

   Gills

   Attachment to stem, color, and spacing.

   Close, radiating from the point of attachment, often whitish to pale tan. They may become slightly pinkish with age.

3. 3

   Stem

   Length, shape, surface, and any ring.

   Absent or rudimentary.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   Thin and gelatinous.

5. 5

   Fruiting body

   Overall growth pattern.

   Small, kidney- or shell-shaped, gelatinous texture.

6. 6

   Habitat

   Where it grows and on what substrate.

   Found on decaying deciduous wood, especially on logs and branches. It is a saprophyte, meaning it obtains nutrients from dead organic matter.

Key Facts

Cap surfaces

Smooth, gelatinous when moist.

Growth Form

Singly or in small groups.

Spore Print

Pinkish-brown.

Body color

Pale tan to brownish.

Odor

Mild.

Flesh bruises

Does not typically bruise.

Height

Up to 1 cm.

Cap Diameter

1-4 cm.

Fruit body characteristics

• Gill attachment: Adnate to decurrent.
• Stem shape: Absent or rudimentary.
• Stem surface: N/A
• Ring: Absent.
• Stem cross-section: N/A

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